is a Japanese singer-songwriter and composer. He graduated from Okayama Prefectural Kurashiki Amagi High School and Nihon University College of Economics. In 2017, Nakanishi participated as a guest
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2185f80168e9e56fcebc0c35306e5896b2426921fab43317762214275bef9d5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b75047d1-a6d3-4b13-9099-6d28f8645766.json and https://artists.proofprofile.net/proofs/artist/b75047d1-a6d3-4b13-9099-6d28f8645766.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa358ac95cc8cd9b1489cb3accc2addf0bca85b13a5cc82270429261f488672. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c070bacdbaeafde7fe6f1a4fa4436ec26902a5315f3d0fe57ab385646f7fd0. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:18:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02300440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d68d5a5e15a5cf938821dbc58ce9d4426235ec748d376e04c9b0c68dd07829. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:50:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02300500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17381cb5c6e6c5bcd1fdf498b88a5bed6de9b8314dd069c13600686af7aeb9e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269047f8f6d4ea4a8fe073aacd805264383e799daf7a676ec0c218658d6810f9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02300760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286455d297bcb3553e6da5116c4090a3680b02787582206b0edcaaae705f25f7. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02300800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ec24142e30382eb511f9a1c50a1806d8de856e1705c4e2891adcb231f3ebf0. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02301040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b5edcd3a9bd31df263d437f41b50a3f3ed63456c6d99fca6edc29408c224c5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02301000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf38b1591c05304314d741727d255eadef2cc27f9ba0e6f269432649494ea599. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa358ac95cc8cd9b1489cb3accc2addf0bca85b13a5cc82270429261f488672. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39c71a9dfe96a86c03412b15ee34ec8a89e693bb71900aa92c1bed26322b0a2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09403251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e9b4bfbb1b67353eaca2ce1e94a331e83c2c314ebb6c0d5526584d58c7828c. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09503550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf772e65459aa3d3c0834c11e04835121b0704768b4a7357320bf3d5b100b3ec. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09605540.
Meikyuno rakuen(BREAK OUT MIX)/SON OF THE SUN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790b3f181c5b8ae9799c96179b811400d519f226e4919e27e1445b0ee93ab5b0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09805640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa575de01a372a3cae715cb6876daaffc5abfecf84324f2f77e568e60e4bfbde3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09805710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5e901c84201ab4e90bb06d37be057dc46c10eef2cc5ee01e950c03334ed0b0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI09600190.
KEIZO NAKANISHI complete BEST SELECTION~Choo Choo TRAIN~
KEIZO NAKANISHI complete BEST SELECTION～Choo Choo TRAIN～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf1b263a061af01b8ac30ec989be98def2252433b559c4958e695454ee9ac73. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e4c74569215b620a3d82232ab1324b84cd452e0ef51868a5868b1a3fceb308. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01415936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9d73b06e1dfdeb1429f0b24dbf6b9188d3c3438e6438d11c94c2e7c40005a7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01314072.